Questions tagged as 'android-studio'

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Error getReference (). child () with firebase

I'm doing a chat example using Firebase and I have the following error. E/AndroidRuntime: FATAL EXCEPTION: main Process: com.yordy.richard.firebaseejemplo, PID: 23054 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.yor...
asked by 27.11.2018 / 15:11
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Android Studio does not show me the display in android format

suddenly it has just been taken from me, when trying to open a new project, this screen comes out I already tried everything and I can not solve it     
asked by 28.11.2018 / 07:37
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Reduce Cursor in Android Studio

I have a question about cursors, in my application I created a cursor that collects data from an internal database of the app, in this case it collects the thermal printers connected by network, I have 2 printing zones and each of them I have as...
asked by 28.11.2018 / 09:41
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BroadcastReceiver reconnected during delay

Hi. I have a BroadcastReceiver and it responds well. I am using a custom layout in case there is no connection that after 10 seconds the google dinosaur does not appear.  Now it turns out that in addition to completing the 10 seconds. if the con...
asked by 27.11.2018 / 05:41
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I have a problem with an arraylist in Android Studio

I'm something new on Android and I'm doing an app where a list of data taken from firebase is used, which I want to show in a recyclerView and it does not show me directly, but when debugging I look for the error and with certain steps it shows...
asked by 26.11.2018 / 09:38
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I do not know how to edit with an SQL Lite base on Android

I am trying to make an application in which one of the sections I have done an "Edit" button which I want to edit a "recipe" of the database. I have tried and I do not know very well how to do it (I am learning). Haber if someone gives me some l...
asked by 24.11.2018 / 12:21
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FILL IN MULTIPLE RECYCLERVIEW WITH FIREBASE, ERROR ANDROID STUDIO

I have a problem filling the recyclerview through firebase , I have 3 adapters, two horizontal adapters (one filled with firebase and another directly from the code android studio), and an adapter that orders the two adapters...
asked by 23.11.2018 / 00:10
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Problem when modifying a textView that is in another form

I have a problem when changing the text of a texView found in the first layout by pressing a button that is in the second layout . The thing is that if you let me change it backwards (from the first layout to the second one). I...
asked by 01.12.2018 / 01:16
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Use Bluetooth Device to connect to the internet

I'm making an application where I connect 2 devices: Device1 that I connect to Bluetooth to Device2 that already has internet via wifi. In Device2, activate the Tethering to share the internet with Device1, but to be able to complete it;...
asked by 22.11.2018 / 01:45
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How to connect my application to an external database?

I am working on an application that should recover information from an external database, I have to recover text and images, I do not know which is more advisable to use, use Firebase or Google Cloud, or develop the web Service, if I develop the...
asked by 20.11.2018 / 19:24